Nonrefillable bottle stopper



April 18, 1939. .1A H. BALDWIN Er Al. 2,155,291

lNONREFILLAL-E BOTTLE sToPPER Filed Dec. 23, 195e 2 sheets-sheet 1 ATTRNEY April 18, 1939.

J. H. BALDWIN ET Al.

NONREFILLABLE BOTTLE STOPPER 2 2 sheets-Sheet 2 F'iled Dec.

INVENTORS Patented Apr. 18, 1939 UNITED STATES NONREFILLABLE BOTTLESTOPPER si James H.

Baldwin, New Milford, and Knud Knudsen, Danbury, Conn., assignors toContainer Fitments, Inc., poration of Maryland New York, N. Y., a cor-Application December 23, 1936, Serial No. 117,397

12 Claims.

This invention relates to non-rellable bottle Stoppers.

One of the objects of this invention is to provide a practical,dependable, and rugged non-rellable bottle stopper construction, capableof inexpensive manufacture, and of dependable and effective action anduse. Another object is to provide a construction of the above-mentionedcharacter that will readily lend itself to quantity production. Anotherobject is to provide a stoplper construction of the above-mentionedcharacter made up of component parts which individually are ofinexpensive construction and capable of ready and dependable assembly.Another object is to provide a` non-rellable stopper construction thatwill be strong, rugged, and tamper-proof. Another object isI to providea construction oi the above-mentioned character that will have higheiciency of action in negativing attempts to refill the bottle orcontainer, that will be compact, and that will be capable oi dependableand eflicient interrelation with a container such as a bottle. Anotherobject is to proivide a non-reiillable stopper construction that will bewell adapted to nieet the varying conditions met with in practice. Otherobjects will be in part obvious or in part pointed out hereinafter.

The invention accordingly consists in the features of construction,combinations of elements and arrangements of parts as will beexemplified in the structure to be hereinafter described, and the scopeof the application of which will be indicated in the following claims.

In the accompanying drawings in which is shown a preferred one of thevarious possible embodiments oi our invention,

Figure l is a central vertical sectional view through a bottle neck withthe stopper and closure of our invention related thereto;

Figure 2 is a top plan View, as seen along the line 2 2 of Figure 1;

Figure 3 is a central vertical sectional view like that of Figure l butshowing the closure removed,

' the construction tilted, and showing also certain changedrelationships of certain of the parts;

Figure 3a is a View like that of Figure l, certain parts being omitted,showing a modified form of closure;

Figure 4 is a horizontal sectional view, as seen along the line ll ofFigure l;

Figure 5 is a horizontal sectional View, as seen along the line 5-5 ofFigure l;

Figure 6 is a horizontal sectional view, as seen along the line 6 5 ofFigure l;

Figure 7 is a horizontal sectional view, as seen along the line l-l ofFigure 1, and

Figure 8 is a ydetached isometric View of one of several upright partsof the stopper construction.

Similar reference characters refer to similar parts throughout theseveral views in the drawings.

Referring first to Figure 1, the stopper construction comprises agenerally cylindrical casing I0 and illustratively is shown related to abottle neck II. The casing I9 is of sheet metal having a bottom memberI2 provided with a central round hole I3, a band-like portion about thehole I3 being preferably bent or shaped to extend downwardly at aninclination, being in effect frusto-conical in shape.

At its upper end the casing IU has a peripheral laterally extendingflange I5. Flange I5 is of an outside diameter commensurate with that ofthe upper end of the bottle neck, the latter being provided with anannular or ring-shaped shoulder I5; the diameter of the casing I3 isslightly less than the diameter of the effective aperture through theshoulder I6 so that the casing IB, with the parts' assembled therein aslater described, may be snugly or freely received into the neck II ofthe bottle.

The flange I5 prevents the casing I0 from dropping into the bottle and,as later set forth, is to coact with a gasket Il interposed between itand the upper face of the shoulder IE.

The above described preferred configuration of the casing Ill is onewhich permits of great facility in manufacture and it may easily be spunor drawn into the shape described. At the same time or at anyappropriate stage, the lower portion, about one-half or less, of thecylindrical side wall of the casing I0, is pressed or drawn inwardlythroughout a suitable number, illustratively three, arcuate regions, asis better shown at A, B and C of Figures 7 and 8, leaving therebetweenequiangularly spaced vertically extending channels I8, I9 and 20 of adepth in a radial direction commensurate with the thickness of the sheetmetal employed, for a purpose later described.

Resting upon the horizontal portion of the bottom I2 (Figure 1) andoverhanging the frusto-conical portion I9 thereof is a washer 2 I,having an aperture 22 therein commensurate with the hole I3 in thebottom I2. With this Washer 2| a hollow ball 23, preferably of sheetmetal, is to coact. Washer 2| may be made of any suitable gasket-likematerial, but preferably is of a material that is per se yieldable andalso resiliently flexible or bendable; various materials meeting thesepreferred characteristics are avallable, such as rubber, corkcomposition, cork, or the like, and illustratively and preferably, thewasher 2| is of cork.

Resting upon the outer annular portion of the Washer 2| is a metalwasher 24, preferably shaped as shown in Figure 1, and held againstupward movement in a manner later described. The washer 2| is thus heldin place but with its inner annular portion overhanging thefrusto-oonical portion I4 of the bottom |2.

The peripheries of the washers 2| and 24 are of a radius substantiallyequal to the radius of curvature of the portions A, B and C (Figures 6and '7), and hence when bottomed against the bottom |2, these washersleave unobstructed the lower ends of the channels 8, I9 and 28 in theside wall of the casing I0.

Into the casing ||l are then inserted three upright members 25, 26 and21 (Figure 6) one for each channel and registering therewith. Thesemembers are of identical construction and one of them is shown inperspective in Figure 8.

It has an upstanding main wall portion 21 dimensioned to be snuglyreceivable into a channel of the casing I0 and two vertically extendingflanges 28 and 29 which, however, terminate short of the lower edge 3|)of the portion 21, the anges leaving shoulders 3|, 32 extendingsubstantially horizontally away from the part 21. These shoulders 3|, 32of the three upright members extend over the metal washer 24 (seeFigure 1) the free or unflanged edge portion 30 (Figure 8) of eachupright member bottoming, each in its own channel, against the bottom |2of the casing I8.

The flanges 28, 29 of each of the three members have straight orsquared-off edge faces 33, 33 (see Figure 8) which, as is better shownin Figure 1, extend parallel to the axis of the casing Hl, and theseportions of the flanges are of such dimensions that the edge faces 33fall equidistantly spaced about a circle whose diameter is approximatelythat of the ball 23, as is better shown in Figure 7. Since, however, theflanges 28, 29 extend preferably at an angle to a radius, each angepresents to the ball 23 what is in effect a knife edge, being formed bythe line of intersection of the edge face 33 with the plane of the innerface of its vertical liange. tratively, therefore, there is provided avertical guideway for the ball 23 formed by six parallel knife edgeswhich coincide with a cylinder whose radius is, excepting for a slightplay, equal to that of the ball 23.

With the upright members 25, 26 and 21 thus inserted in the casing I8,the ball 23 may next be dropped into place, in this guideway, and then aweight member 34 (Figure 1) is next put in place above the ball.

Weight member 34 is generally concavo convex in shape, is preferably ofmetal, and an illustrative specific shape is shown in Figure 1. It isaccordingly unbalanced or in unstable equilibrium with respect `to itsconvex side portion as a base.

Weight 34, circular in a horizontal cross-section through Figure 1, isconfined between inclined edge faces 35, 35 (see Figures 8 and 1) formedin the flanges 28, 29 of the upright members, and here again, forreasons that will now be clear, the flanges 28, 29 present knife edgesfor contact therewith by the curved faces of the Weight 34.

Flanges 28, 29 (Figure 8) of the upright members are notched adjacenttheir upper ends, as

Illusat 36, 36, and where three such U-shaped and hence two-flangedupright members are employed, six such right-angled notches 36 arepresented toward the axis of the casing I8 and all equally spacedtherefrom. Into these circularly alined notches 36 is then seated agenerally disk-like member generally indicated at 31 in Figure 1, havingits circular plate-like portion 38 terminating in an upwardly directedperipheral ange 39 Whose upper edge is flush with the upper edges of thethree upright members 25, 26 and 21.

Member 31 thus holds these three upright members against movementinwardly toward the axis and hence coacts with the lower metal washer 24in holding these three members snugly against the cylindrical walls ofthe casing I0. Member 31 also closes over the upper end, as viewed inFigure 1, of the upwardly tapered guideway formed by the knife edges ofthe edge faces 35 and thus acts to confine the weight member v34. Theplate-like base portion of the member 31 is, at suitable intervals,provided with downwardly pressed but narrow and preferably sharply denedradial ribs 40, illustratively six in number, as shown in Figure 6.'I'hese ribs face downwardly and hence are exposed to the Weight34 andthey are suiicient in number to insure that, in any tilted position ofthe Weight, the latter engages one or more ribs and does not engage theplane under-surface of the plate portion 38.

The member 31, however, is of lesser diameter than that of the shell orcasing ||l (see Figure 7), thus leaving an annular space or channel Ebetween its flange 39 and the casing wall, this channel being availablefor the flow of liquid and being otherwise unobstructed excepting forthe presence of the thin flanges 23, 29 of the upright members.

Accordingly, we provide an annular or ringlike sheet metal member 4|(see Figures 1 and 5) whose outside diameter is but slightly less thanthe inside diameter of the casing ID so as to be somewhat slightly loosein the latter and whose inside diameter is materially less than that ofthe flange 39 of the member 31; ring member 4| is next inserted into thecasing and by its own weight it is brought to rest upon the upper endedge faces of the three upright members 25, 26 and 21 and of theupstanding peripheral ange 39 of the member 31 (see Fig-ure 1), thussubstantially closing the annular channel or passageway E (Figure 6).

At a suitable number of points, illustratively three, and preferablyequidistantly spaced about its inner periphery, the member 4| hasupstanding therefrom and preferably integrally formed therewith ears 42,shaped as is better shown in Figure l.

Extending centrally and upwardly from the member 4| is a post-like stud43 (Figure 1), secured to the member 31 in any suitable way. Thus,member 31 may be centrally apertured and by appropriate conformation ofthe lower end of the stud 43, the lower end may be riveted over as at44. The vertical dimension of the stud 43 is about twice that of theupstanding ears 42 of member 4|.

Stud 43 serves in part as a spacer to limit the downward approach towardthe member 31 of the disk-like portion 45 of a sheet metal membergenerally indicated at 46, the latter having a cylindrical side wall 41joined to the portion 45 by a suitable number, illustratively three, ofupwardly and inwardly inclined lugs 48 (Figures 1 and 4),

whereby the plane of the disk-like portion 45 is upwardly displaced fromthat of the lower edge of the cylindrical wall portion 4T. The latterhas an outside diameter substantially matching the inside diameter ofthe casing I0 so that the member 46 may be inserted into the casing IDwith a snug or friction fit.

If desired, the disk portion 45 of the member 46 may be secured to theupper end of the stud 4.3 so that the parts 31, 43, 4l and 46 may beinserted as a unit.

The diameter of the disk portion 45 of member 46 (Figure 1) is somewhatgreater than the diameter of the circle about which are spaced theupstanding ears 42 of the member 4! so that, when the latter moves alongthe axis of the casing l0 toward the discharge end of the bottle,members 42 contact the inner face of the disk portion 45 and avoid entryinto the channels or apertures F, G and H (Figure 4) which intervene thespaced lugs 48, 48, 48.

Member 46 having been inserted, there is now inserted into the upper endof the casing I a member generally indicated by the reference character50, having a cylindrical side wall 5l, terminating at its upper end inan outwardly extending peripheral flange 52 and having extendinginwardly and upwardly from its lower edge an annular wall portion 53that terminates in a cylindrical open-ended pouring spout 54.

Cylindrical wall portion 5l is of a diameter to be snugly or with afriction fit received into the upper end of the casing l0 and is of alength such that when it engages the upper edge of the cylindrical wallportion 41 of member 45 upon which it is thus superimposed, its flange52 becomes superimposed upon the casing flange l5. Thereby, the assemblyof the parts is completed and the stopper construction may now berelated to the bottle neck l l.

In so doing, a gasket ll is first related to the upper face of theshoulder I6 or to the under face of the double flange l5-52 and thestopper construction inserted into the bottle neck Il so that the washerl1 is interposed between this double ange and the upper face of theshoulder I6. Thereupon, a suitable tool or instrument, having parts thatenter into the annular space between the cylindrical portions 5l and 54,is applied to spin or force or press the metal of the upper portion ofthe casing l0 and the lower portion of the cylindrical wall 5| outwardlyagainst the downwardly and outwardly inclined surface 55 of the shoulderI6, an action which brings about a downward drawing of the stopperconstruction with resultant secure compression of the gasket l1 betweenthe shoulder I6 and the double flange I5-52.

The spout portion 54 is thus brought with the plane of its upper edge insubstantial coincidence with the plane of the upper edge of the bottleneck Il, an arrangement preferred where we apply a closure in the formof a sheet metal cap 55 having a thread 5T formed thereon for coactionwith an external thread 58 on the bottle neck; in such case the gasket59 in the cap 55 effects a sealed closure not only-with respect to thebottle neck Il itself but also with respect to the pouring spout 54. Orthe spout 54 may have threads formed on it to receive a threaded cap 60with a basket 6|, as shown in Figure 3a.

In effecting pouring of liquid from the bottle or container, afterremoval of the closure, the bottle is, of course, appropriately tiltedand the pressure of the liquid in seeking an exit forces the ball 23away from its seat and thereby maintains an appropriate tilted positionof the Weight 34 to negative the normal action of the latter. Flow maytake place through the annular channel El of Figure 6, ring member 4 I,theretofore acting like a mechanical valve, being forced by the flowingliquid or by its own Weight out of closing position with respect to thischannel E, but the ears 42 (Figures l and 3) limit the movement of themember 4| toward the disk portion 45 of the member 46, holding it spacedaway from the latter so that the liquid, after emerging from the annularchannel Ev (Figure 6) may now pass through the central hole 62 (Figures3 and 5) in the member 4i and thence radially outwardly and upwardlythrough the channels or apertures F, G and H (Figures l, 3 and 4) in themember 46, thus reaching the pouring spout 54. At the same time aningress of air takes place through a substantially similar path but inreverse direction. The iiow is uniform, steady and rapid.

Attempts to refill the bottle are successfully frustrated. T'he ball 23Yand Weight 34 are mechanically inaccessible by way of an implement orinstrument. For example, member 4l functions as a mechanical valvenormally closing off the annular channel El (Figure 6) through which aninstrument would have to be inserted in the effort to reach the ball orthe weight. The member 4l itself is virtually incapableof manipulationby way of an implement applied through the spout 54; not only is thepath to reach 'it circuitous but also its proportions with respect tothe proportions of the annular channel E are such that the higher thatthe member 4I is raised the more circuitous and difcult does any pathbecome by which the channel E` has to be approached'. Also, raising themember 4l from the position shown in Figure 1 brings it closer toward aposition closing the peripheral channels or openings F, G and I-I in themember 45.

If attempt is made to refill the bottle, by upending it, the buoyancy ofthe hollow ball 23 brings the latter into seating relationship to theyieldably flexible washer El, thus closing off ingress. If the bottle istilted, illustratively to the horizontal position of Figure 3, theoverbalanced weight member 34 tilts against the ball and moves it toclosing position; in this connection, the inclined knife edge guides ofthe flange portions 35, 35 of the members 25, 2S, 2l insure asubstantially frictionless sliding movement of the weight 34 into aposition like that shown in Figure 3 where it forces the ball intoclosing position.

The knife edge guideways for both the ball and the weight insurecertaintyand quickness of action and also insure such true point contactthat adhesion or adherence of he ball or weight to their respectiveguide members, as by an intentionally applied foreign substance, isdependably precluded.

If attempt is made to refill the bottle or container by establishing apressure differential between the liquid and the interior of the bottle,the ball 23 is forced against the yielding material of the washer 2|,transforming what was theretofore substantially a line contact into aband-like surface or area of contact, an area which is increased as thepressure differential increases inasmuch as the Washer 2i begins toyield or flex as a whole, its inner annular portion flexing downwardly,as viewed in Figure l, or to the right, as viewed in Figure 3, to anextent permitted by the frusto-conical portion I4 o-f the bottom l2.Thus, the effectiveness of the sealing of the hole I3 is made toincrease with increase in the pressure differential.

Furthermore, the normal substantially line or circle of contact with theparts in the position shown in Figure l, between the washer 2l and theball 23, permits adequate freedom of breathing in both directions, andthus, under normal usage, a locking of the ball 23 in closing positionis precluded.

inasmuch as this application and our cepending application Serial No,117,396 led of even date herewith, contain certain subject matter commonto both and since such common subject matter is claimed in the saidco-pending application, we do not herein make claim thereto.

It will thus be seen that there has been provided in this inventionnon-reiillable stopper construction in which the. various objectshereinbefore noted, together with many thoroughly practical advantages,are successfully achieved. It will be seen that the individual parts ofthe construction are capable of easy and inexpensive iabrication,lending themselves td ready drawing or stamping, for example, where madeout of sheet metal. However, it will be apparent in view of theforegoing that many of the features and advantages of our invention maybe achieved if materials other than sheet metal are employed; thus, forexample, various of the parts may be made of non-metallic materials andillustratively may be readily made of, for example, mol'dable materials,plastics, or the like. It will also be seen that the assembly of theseparts to make up the completed stopper may be simply, efficiently andinexpensively carried out. Furthermore, the construction is dependablytamperproof and is well adapted to meet the varying conditions of hardpractical use.

As many possible embodiments may be made of the above invention, and asmany changes might be made in the embodiment above set forth, it is tobe understood that all matter hereinbeiore set forth, or shown in theaccompanying drawings, is to be interpreted as illustrative and not in alimiting sense.

We claim:-

l. A non-rellable bottle stopper construction comprising a casing havinga valve opening in its bottom and a yieldably flexible washer with itsinner annular part overhanging said valve opening, a ball float valvefor coaction with said washer, an unbalanced weight member for coactionwith said valve, a plurality of guide parts spaced about the interior ofsaid casing and forming a guideway for said valve and weight memberl andoverlying said washer to hold it in place, said guideway beingmechanically closed off and said parts being held in spaced relationshipby passage-forming bafe means that comprises two plate-like members withmeans holding them in spaced relationship, the lower of said plate-likemembers having connection with said guide parts to hold them againstinward and upward movement and leaving unobstructed passageways betweensaid spaced guide parts, said casing and said one plate-like member, andthe other plate-like member having apertures therebaffle that blocksstraight-line access from said apertures to said passageways.

3. A non-refillable bottle stopper construction as claimed in claim 1 inwhich said other platelike member has its apertures adjacent the outermargin thereof, there being interposed between said two spacedplate-like members a ring-like baie member freely movable therebetweenand held by its Weight, when said stopper construction is in normalposition, in a position substantially closing off said passageways,thereby to block mechanical access to said valve or weight member.

4. A non-refillable bottle stopper construction as claimed in claim 1 inwhich said other platelike member has its apertures adjacent the outermargin thereof, there being interposed between said two spacedplate-like members a ring-like baffle member freely movable therebetweenand held by its weight, when said stopper` construction is in normalposition, in a position substantially closing oir said passageways,thereby to block mechanical access to said valve or weight member, saidbaflle member being movable un- K der its own weight or under thepressure of flow of liquid, when said stopper is in tilted position,away from said upper passageway and toward said other plate-like member,there being means to limit said last-mentioned movement of said baffiemember to prevent it from closing ofi said apertures.

5. A non-rellable bottle stopper construction as claimed in claim l inwhich the means for holding said other plate-like member, and hence saidguide parts and washer, against removal from said casing comprises aspout-forming member closing olf the upper end of said casing, securedto the latter, and having means engaging said other plate-like member tohold it against upward movement.

6. A non-refillable bottle stopper construction comprising a casinghaving a valve opening in its bottom and a valve coacting therewith, aweight member coacting with said valve and passage-forming baffle meansfor blocking mechanical access to said weight member and valve whilepermitting flow of liquid through its passages and comprising two partsspaced axially of said casing and substantially closing oil the latterexcepting for means forming passages adjacent the peripheries of saidparts, with bafiie means between said two parts of an extent to preventsubstantially straight-line access through the passages in said twoparts to the space occupied by said weight member and valve, said baliiemeans being freely movable in the space between said two spaced partswhereby under the action of its own weight on the pressure of liquidflowing through said passages it moves toward one part or the otherdepending upon the tilting of the stopper construction, there beingmeans for preventing said baiile means from closing 01T the passages inthe outer of said spaced parts when the tilt of the stopper constructionis such as to permit flow of liquid 4in a direction outward of saidvalve opening.

7. A non-relllable bottle stopper construction comprising a casinghaving a valve opening in its bottom and a valve coacting therewith, aweight member coacting with said valve and passage-forming baffle meansfor blocking mechanical access to said weight member and valve whilepermitting flow of liquid through its passages and comprising two partsspaced axially of said casing and substantially closing oi the latterexcepting for means forming passages adjacent the peripheries of saidparts, with bale means between said two parts of an extent to preventsubstantially straight-line access through the passages in said twoparts to the space occupied by said weight member and valve, said twospaced parts being held in spaced relationship by spacer means engagingthem adjacent their central portions and said baliie means cornprising aring-like member extending about but spaced from said spacer means toform a passageway therebetween, said ring-like member being movableaxially of said casing and between said two spaced parts and occupying,by its own weight, when said stopper construction is in normal position,a position to substantially close off the passages associated with thelower of said spaced parts.

8. A non-rellable bottle stopper construction comprising a casing havinga valve opening in its bottom and a valve coacting therewith, a weightmember coacting with said valve and passage-forming baie means forblocking mechanical access to said weight member and valve whilepermitting iiow of liquid through its passages and comprising two partsspaced axially of said casing and substantially closing 01T the latterexcepting for means forming passages adjacent the peripheries of saidparts, with baffle means between said two parts of an extent to preventsubstantially straight-line access through the passages in said twoparts to the space occupied by said weight member and valve, said twospaced parts being held in spaced relationship by spacer means engagingthem adjacent their central portions and said baffle means comprising aring-like member extending about but spaced from said spacer means toform a passageway therebetween, said ring-like member being movableaxially of said casing and between said two spaced parts and occupying,by its own weight, when said stopper construction is in normal position,a position to substantially close oli the passages associated with thelower of said spaced parts, and means preventing said ringlike member,when said stopper construction is tilted to pouring position, frommoving toward the upper of said spaced parts suioiently to close off thepassages associated therewith.

9. A non-rellable bottle stopper construction comprising a casing havinga valve opening in its bottom and valve means coacting therewith, saidcasing having projecting inwardly thereabout a plurality of spacedlongitudinally extending parts forming passageways therebetween andconfining said valve means against certain lateral movement, andpassage-forming baille means closing off said casing and comprising aplurality of longitudinally spaced members with means engaging themsubstantially centrally for holdingthem in spaced relation, said meansproviding passages for the flow of liquid therethrough from saidpassageways, said construction having interposed between two of saidspaced members a movable baffle member which by its weight, when saidconstruction is in normal position, blocks off said first-mentionedpassages.

10. A non-rellable bottle stopper construction comprising a casinghaving a valve opening in its bottom and valve means coacting therewith,said casing having projecting inwardly thereabout a plurality of spacedlongitudinally extending parts forming passageways therebetween andconning said valve means against certain lateral movement, andpassage-forming baille means closing off said casing and comprising aplurality of longitudinally spaced members with means engaging themsubstantially centrally for holding them in spaced relation, said meansproviding passages for the flow of liquid therethrough from saidpassageways, said plurality of parts being separate from said casing andadjacent their upper ends being provided with seats, the lower of saidlongitudinally spaced members extending into said seats.

l1. A non-refillable bottle stopper construction comprising a casinghaving a valve opening in its bottom and valve means coacting therewith,said casing having projecting inwardly thereabout a plurality of spacedlongitudinally extending parts forming passageways therebetween andconfining said valve means against certain lateral movement, andpassage-forming baille means closing ofi said casing and comprising aplurality of longitudinally spaced members with means engaging themsubstantially centrally for holding them in spaced relation, said meansproviding passages for the flow of liquid therethrough from saidpassageways, said plurality of parts being separate from said casing,the latter having means at its lower end for holding the lower ends ofsaid parts against inward Inovement and said parts being engaged attheir upper ends by said baffle-forming means to hold said parts attheir upper ends against inward movement.

12. A non-rellable bottle stopper construction comprising a casinghaving a valve opening in its bottom and valve means coacting therewith,said casing having projecting inwardly thereabout a plurality of spacedlongitudinally extending parts forming passageways therebetween andconfining said valve means against certain lateral movement, andpassage-forming baffle means closing off said casing and comprising aplurality of longitudinally spaced members with means engaging themsubstantially centrally for holding them in spaced relation, said meansproviding passages for the flow of liquid therethrough from saidpassageways, said plurality of parts being separate from said casing andthe latter has in its sidewalls a plurality of longitudinally extendingchannels into which Said plurality of parts are respectively received,said baffle-forming means and said plurality of parts being interengagedat the upper ends of the latter to hold them against movement out oftheir respective channels.

JAMES I-I. BALDWIN. KNUD KN'UDSEN.

